Apparatus for raising or lowering pump-pipes.



No. 654,376. Patented July 24, I900.

e. ZINK.

APPARATUS FOR RAISING 0R LOWERING PUMP PIPES.

(Application flld Oct. 25, 1899.)

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No. 654,376. Patented July 24, I900.

s. .ZINK. I

APPARATUS FOR RAISING 0R LOWERING PUMP PIPES.

(Application flied Oct. 25, 1899-) (No Model.)

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'Ni'rnn STATES PATENT Orrrcn.

GEORGE ZINK, OF SHADY BOWER, MARYLAND.

SPECIFICATION forming part of Letters Patent No. 654,376, dated J uly24, 1900.

Application filed October 25, 1899. Serial No. 734,723. (No model.)

To all whom it may concern.-

Be itknown that I, GEORGE ZINK, a citizen of the United States, residingat ShadyBower, in the county of Washington and State of Maryland, haveinvented new and useful Improvements in Apparatus for Raising orLowering Pump-Pipes, of which the following is a specification.

My invention relates to apparatus for raising and lowering pump-pipesand sucker-rods from wells, and is more particularly intended to be usedin connection with drilled wells. These wells, as is well understood bythose skilled in the art, are lined or cased with tubin g within whichare located the pump-pipes which contain the sucker-rod. These pipes andsucker-rods are made of suitable lengths and are connected at the endsby screw-couplings.

The object of the invention is to provide an improved construction ofapparatus by which the pump-pipes and sucker-rods can be raised andlowered in a rapid and efficient manner.

The invention consists in the novel construction and combination ofparts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a front elevation of anapparatus for raising and lowering well-pipes made in accordance myinvention. Fig. 2 is a side elevation of the same. Fig. 3 is a detailplan view. Fig. 4: is a horizontal section 011 the line a; :0, Fig.2.Fig. 5 is a detail section, showing the bearing for the clamp at thebottom of the apparatus.

In the said drawings the reference-numeral 1 designates a casting formedwith a base 2, having side flanges 3, formed with holes for the passageof bolts 4, by which the apparatus is 'secured to the well floor orplatform. This base is provided with a hole 6 for the passage of thepipe to be raised or lowered and with a slot 7 for allowing thepump-pipe to enter the hole 6. At one end the said base is formed with ashort standard 8, having a rectangular socket therein within which fitsthe lowerv end of a vertical post 9, which is held in place by a pin 10,passing therethrough and through the standard. This standard is alsoformed with an arm12, having a curved recess at the inner end, whichengages with the pump-pipe. At the opposite end the base is formed withtwo lugs 13, formed with open bearings 14, with which engage thejournals 15 of a clamp 16, having a curved corrugated or serrated recessin the free end,-which is adapted to engage with the pump-pipe when thelatter is being raised from the well.- Passing through a slot or openingin the said post are two levers 17 and 18, which are pivoted to saidpost and each of which is formed with a segmental cogear which mesh witheach other. The outer ends of these levers are provided with sockets toreceive ahandle 19, by which they are operated. The inner ends of theselevers are bifurcated, forming two curved arms 20, each having an eye 21at the end. Connected with these eyes are links 23, -which in turn arepivotally connected with eyes 24 of clamps 25, the inner ends of whichare formed with curved corrugated or serrated recesses adapted to engagewith the pump-pipe. These clamps are pivotally connected with verticallyslidable or movable plates 26, which are connected together by thepivots 27 of the clamps. These plates are formed with two bolt-holes atone end, so

that the clamps may be adjusted to pumppipes of different sizes ordiameters. It will be noticed that the end of one plate projects beyondthe end of the other plate when used in connection with a small pipe,but are flush when a larger pipe is engaged by the clamps. Each ofsaid-clamps is formed with an eye 29 intermediate the ends with whichengages the lower end of a coiled spring 30. The up per ends ofthesesprings are connected with eyes 31 in the said levers back of thelinks 23. These springs are only used when a pipe is being lowered, aswill be hereinafter described, being detached or disconnected with theclamps when the pipe is being raised. The said levers 17 and 18alternately operate in opposite directions, so that the clampsalternately move toward and away from each other. The curved arms andclamps of the -lower lever are somewhat largerthan those of the upperone, so that as said clamps approach the arms can slip past each other.

The numeral 32 designates a standard the lower end'of which is slottedand pivotally connected with the upper end of the post 9 by a pivot 34.A pin 35, passing through said standard and post, holds the former in avertical position. The upper end of said standards is formed with ahorizontal arm 36, formed with a lug 37 at the end. This arm is providedwith a stationary jaw 38, having an angular serrated recess 39' in theend adapted to engage with the pump pipe. Hinged to this arm is aslotted plate 40,provided with a movable jaw 41, having a similar recess42. This movable jaw is carried by a cross-head 43, working in the sidesof the slot 45. Connected with this cross-head is' a screw 46, whichpasses through a correspondingly-threaded hole in the end of the saidplate and is provided with a crank 47. By turning this crank the jaw 41can be moved toward the stationary jaw, so as to clamp the pipetherebetween. The object of hinging the said plate to the arm 36 is tofacilitate the engagement of the pipe by the jaws, the said plate beingturned on its hinge and thrown away from the arm when the jaws are'toengage with the pipe and then pushed back or closed. A pivotedspring-actuated catch or lever 48 engages with the lugs 36 for holdingsaid plate in its closed position.

The numeral 49 designates a lug carried by the standard 32, formed witha vertical hole with which pivotally engages a pin 50, provided with aplate 51, which is adapted to support a sucker rod, as hereinafterdescribed.

The numeral 52 designates the pump=pipe, and 53 the sucker rod.

The operation is as follows for raising a pipe: The pump-casing isdisconnected from the'upper end of the pump-pipe and the clamp 16removed from its bearings. The clamps are also disconnected. The slot inthe base 1 is now slipped past the pump-pipe and the apparatus bolted toa board which rests on the well-platform and the spring disconnectedfrom the clamps 25. By now moving one of the levers 17 or 18 up and downthe clamps will be alternately moved towardand away from each other, theclamps gripping the pipe in the upward movement and releasing their gripon the downward movement. When one length of pipe has been raised'to theupper end of the apparatus, it is unscrewed from the next length andthen clamped between the jaws 38 and 41. The sucker rod is alsouncoupled and raised slightly, so that the plate 51 can be swungunderneath the same, so as to hold and support it. The standard 32 isthen turned downwardly on its pivot, thus lowering said' pipe andsucker-rod to the ground. Said pipe and rod are then removed and thestandard again turned up to a vertical position and the operationrepeated.

In lowering the pipe into the well the coiled springs 30 are connectedwith the clamps 25, the tendency of which when the clamps are raised isto raise the plates 26, throwing the links 23 outward, so that saidclamps will not grip the pipe'on their upward movement until they aboutreach the limit thereof, when they will grab and grip the pipe. Upon thedownward movement of the clamps the weight of the pipe will overcome thetension of the springs, so that the clamps will grip the pipe and thuslower the same.

The clamp at the base of the machine or apparatus is only used whenraising the pipe and is for thepurpose of engaging with and holding thepipe in case of breakage of the apparatus. This clamp when the pipe isbeing lowered is swung backward on its journals, so as to be out ofengagement with the p p Having thus fully described my invention, what Iclaim is-- 1. In an apparatus for raising and lowering pump-pipes, thecombination with the base, the post, the levers pivoted to said post,the intermeshing cog-segments, the curved arms at the inner ends of saidlevers, of the links pivotally connected therewith, the clamps to whichsaid links are pivoted and the plates to which said clamps are pivoted,substantially as described.

2. In an apparatus for raising and lowering pump-pipes, the combinationwith the base, the post-,the levers pivoted to said posts, theintermeshing cogged segments, and the curved arms at the inner ends ofsaid levers, of the links pivotally connected with said arms, the clampsto which said links are pivoted, the coiled springs connected with saidcurved arms and clamps, and the verticallymovable plates to which saidclamps are pivoted, substantiallyas described.

3. In an apparatus of the character-described, the combination with thebase, the post, the alternately-operating levers and the clamps andconnections, of the standard'piv otally connected with the upper end ofthe post, and the stationary and movable jaws connected therewith,substantially as specified.

4. In an apparatus of the character described, the combination with thebase, the post, the alternately-reciprocating clamps and means foroperating the same, 01": the,

standard pivoted to said post, the stationary and movable jaws connectedtherewith and the swinging plate pivotally connected with said standard,substantially as specified.

5. In an apparatus of the character described, the combination with thebase, the post, the alternately-reciprocating clamps and means foroperating the same, of the standard pivotally connected with the saidpost, provided with a stationary jaw, the slotplate pivotally connectedtherewith, the slotmy hand in presence of two subscribing witted platehinged to said. standard, the stanesses. tionary jaw carried by saidstandard, the movable jaw carried by said slotted plate, GEORGE ZINK' 5the cross-head and the screw, substantially Witnessesi as specified.BENNETT S. J ONES,

In testimony whereof I have hereunto set SAML. A. DRURY.

